Speed up inbound WebSocket validation (#1895)

* perf(protocol): generate inbound ws validators

* perf(client): use generated ws validation

* docs(protocol): document generated validation

* fix(protocol): make validator generation source-only

* test(protocol): cover explicit provider model normalization

* fix(protocol): preserve inbound compat defaults

* fix(protocol): make validator import rewrite portable

* fix(protocol): harden validation safety checks

* fix(protocol): guard generated validator boundaries

* fix(protocol): normalize legacy inbound defaults

* fix(protocol): simplify generated validation safety net

* fix(protocol): keep cold typecheck source-only

* fix(protocol): encapsulate validator codegen

* fix(protocol): bootstrap source-alias typechecks

* fix(app): keep source aliases out of bundler config

* fix(protocol): harden validator codegen packaging

* fix(protocol): own zod-aot patches in generator

* fix(protocol): trim validator safety net

* fix(client): normalize provider updates before dispatch

* fix(protocol): keep validator generation out of install

packages/protocol/src/messages.providers-snapshot.test.ts

@@ -38,41 +38,6 @@ describe("provider snapshot message schemas", () => {
     expect(parsed.enabled).toBe(true);
   });
 
-  test("normalizes thinking option defaults on provider snapshot models", () => {
-    const parsed = ProviderSnapshotEntrySchema.parse({
-      provider: "claude",
-      status: "ready",
-      models: [
-        {
-          provider: "claude",
-          id: "MiniMax-M2.7",
-          label: "MiniMax-M2.7",
-          isDefault: true,
-          contextWindowMaxTokens: 1_000_000,
-          thinkingOptions: [
-            { id: "off", label: "Off" },
-            { id: "max", label: "Max", isDefault: true },
-          ],
-        },
-      ],
-    });
-
-    expect(parsed.models).toEqual([
-      {
-        provider: "claude",
-        id: "MiniMax-M2.7",
-        label: "MiniMax-M2.7",
-        isDefault: true,
-        contextWindowMaxTokens: 1_000_000,
-        thinkingOptions: [
-          { id: "off", label: "Off" },
-          { id: "max", label: "Max", isDefault: true },
-        ],
-        defaultThinkingOptionId: "max",
-      },
-    ]);
-  });
-
   test("defaults missing enabled state in providers snapshot response entries", () => {
     const parsed = GetProvidersSnapshotResponseMessageSchema.parse({
       type: "get_providers_snapshot_response",